In this article, we will explore the Best Refractometer For Gemstones that are now on the market. In addition to that, we have provided you with a detailed guide that will assist you in choosing the right product. We really hope that by looking through the reviews of the top Best Refractometer For Gemstones products that we’ve provided below, you’ll be able to quickly narrow your choices and select the one that best satisfies your needs.
We have spent lots of time testing. According to our research, we think Ade Advanced Optics Best Refractometer For Gemstones is the best overall. For more of our top picks, read on! Also, check out our buying guide for some tips on how to choose the right Best Refractometer For Gemstones.
Editor's Choice
Ade Advanced Optics GL500 Gemstone Refractometer with LED Light – Professional Digital Gem Tester
Premium Pick
Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying
Budget Pick
Jewelry Refractometer, Portable Lightweight 1.30-1.81 Professional Gemstone ldentification Gem
Top 10 Best Refractometer For Gemstones
We researched and compared the top products in the Best Refractometer For Gemstones category to provide you with these recommendations.
1. Ade Advanced Optics GL500 Gemstone Refractometer with LED Light – Professional Digital Gem Tester
- DURABLE ALL-METAL CONSTRUCTION Built to last with a solid metal body, this gemstone refractometer ensures stability and long-term use for reliable results in professional gem testing and evaluation
- WIDE MEASUREMENT RANGE Offers a refractive index range of 1.30 to 1.81, covering the values of most commonly tested gemstones. Essential for accurate identification of natural and synthetic stones
- LED ILLUMINATION WITH BATTERIES INCLUDED Equipped with a built-in LED light source powered by 3 x 1.5V batteries (included), providing consistent lighting for clear readings in any lab or field environment
- INDUSTRY-STANDARD GEM TESTING TOOL Regarded as one of the most essential instruments in gemology for verifying gem identity. Trusted by jewelers, gemologists, and appraisers worldwide for precise readings
- COMPLETE TESTING KIT INCLUDED Comes with a polarizing filter for double refraction testing, as well as soft storage pouch to protect the unit and enhance portability during travel or on-site work
2. Jewelry Refractometer, Portable Lightweight 1.30-1.81 Professional Gemstone ldentification Gem
- GOOD FEATURES: Lightweight and compact, easy to carry. The product is stable in performance and used by customers who say it is good
- HIGH QUALITY MATERIALS: Low battery consumption for long service time. Good quality is our goal. Only high quality can satisfy customers' satisfaction. Customer satisfaction is our driving force
- APPLICATION FUNCTION: Identify single and double gems quickly and precisely. You will be very happy with the many uses to meet your needs
- DESIGN CONCEPT: Specially designed for measuring the refractive index of gemstones and solid materials. The minimalist design style makes it very suitable for use
- OUTSTANDING ADVANTAGES: This refractometer features high accuracy and easy Considered by many to be the most important of all gem testing instruments
3. Gem Portable Refractometer, RHG181 1.30-1.81 Presidium Gemstone ldentification Tester for Jewelry,
- Professional DesignThis refractometer is specially designed to measure the refractive index of gemstones and solid materials. The minimalist design style makes it very suitable for use.Considered by many to be the most important of all gem testing instruments.
- High QualityQuality all metal construction, low battery consumption can be used for a long time.Approved by strict quality and safety standards and is trouble-free to use.
- Package ContentsBuilt-in LED flashlight, 30x jewelers loupe in silver housing, one of the most important gemstone identification tools.Quality gemological refractometer with a bottle of 3ML jewelry identification special refraction oil.
- Product AdvantagesThe refractometer is stable in performance, High precision and easy operation, lightweight and compact, easy to transport and carry.
- Professional FunctionsIdentify single and double gems quickly and precisely.Measurement range of 1.30 - 1.81.Helps identify diamonds, moissanite and colored gems, speeds up the identification of gems in the package.Gemstone Refractometer is the most important and powerful tool for identifying and authenticating polished gemstones and semi-precious stones, as well as for observing the optical properties and structure of precious stones.
4. Diamond Tester,Jewelry Diamond Tester Pen+200g/0.01g Mini Jewelry Scale＋60X Mini LED Magnifying,
- Steps of UsageRemove the cap from the testing pen>>Insert the battery we attached >> Turn on the diamond tester pen and wait until both the lambs OK >>Place the pointer vertically on the surface of the stone >>Observe the indicator lights and listen to the sound>> get the result
- FOR DIAMONDFor testing diamond(include real diamond and Moissanite), it will emits beeping-beeping-beeping in a low frequency, 1 time/second. Meanwhile lights 9 (Notice: the bigger the stone is, the more lights on)
- Easy to use Place the tip of the diamond tester gently on the gemstone. If the diamond is fake, crystalline or cubic zirconia, the tester will not beep. An excellent diamond tester tool kit, suitable for handling any exposed or mounted diamonds and gems. Popular among professionals, hobbyists, coin enthusiasts, and business owners alike. Excellent tools. Excellent Value. Great gift idea.
- Intuitive design Our gemstone tester has an intuitive design, light and portable, and the jewelry diamond tester is equipped with LED lights and audio instructions. As long as the tip is perpendicular to the test masonry and the switch is pressed, the result can be obtained.
- Adjust SizeWe have to choose the diamond size before using the diamond tester.Otherwise we may get the incorrect result.
- Touch PanelWe have to touch the panel on the back when testing. Othersize we will get a wrong result.
- Warm NoticeThe Diamond Tester Pen works by measuring the thermal conductivity of an object.Make sure to test according to the correct testing procedure, avoid using the diamond tester on unsuitable items(metal,skin,water and ect.), to ensure accurate testing results. Any improper operation may affect the accuracy of the test.
- Pocket Scale This pocket scale has 200 gram max weight capacity and reads weights in increments of 0.01g.
- Accessory tools Magnifying glass (small microscope) equipped with 60X LED illumination. Diamond test pen can be used for gems, coins, antiques, stamps, reading, inspection, etc. Diamond tester pen is designed for fast, precise and safe diamond testing.
- Professional Diamond Selector After powering on, turn the wheel to keep 4 green lights on to finish the Initialization. Otherwise you will get inaccurate results.For Diamond SimulantsNo Sound and No Red lamps light on.Professional Service:If you have any questions about our diamond tester pen, please contact us. We have a professional dedicated to assisting you and help you answer any questions you may have.
5. Refractometer, Jewelry Refractometer, RHG181 1.30 to 1.81 Professional ldentification Refractometer,
- ABS MATERIAL: This tester is made of ABS material. This material is hard and wear-resistant, which can meet the operator's appraisal needs in daily or professional jewelry appraisal, and has a long service life.
- MATCHING 30ML REFLECTIVE INDEX FLUID: This tester kit also comes with a matching 30ml reflective index fluid. With this and other products to you can directly identify jewelry, not in another bottle of reflective index liquid, can save a lot of time.
- HIGH PRECISION, SMALL SIZE, EASY TO CARRY: Refractometer high precision, easy to operate. Light weight, small size, easy to carry. Since the refractive index varies from stone to stone, it provides an important identification feature. Refractometers are also one of the few instruments that can provide you with information on opaque and transparent .
- FAST AND ACCURATE IDENTIFICATION: This jewelry testing kit is designed to measure the refractive index of and solid materials. Many consider the refractometer to be the most important of all testing instruments. The primary use of a refractometer is to measure the angle of bending or refraction of light as it passes through a . Uniform and results are obtained every time, and the display is clearly visible and easy to read measurements.
- WIDE APPLICATION: This tester pen has a wide range of applications. Refractometer is your primary and most powerful tool in identification. Like a typical critical angle refractometer, it will measure the refractive index of faceted stones.
6. Deskbloom GEM Refractometer 1.30-1.81 RI Range with Flashlight, Refractive Oil, Jewelry Gemstone
- Precision Measurement Range: Measures refractive index from 1.30 to 1.81 RI with 0.01 RI graduation, allowing accurate identification of gemstones with fixed optical properties including birefringence for crystal classification.
- Portable Design: Lightweight 30*70*130mm structure with low power consumption, easy to carry for on-site testing in jewelry workshops, gem trade shows, or field appraisals.
- Complete Testing Kit: Includes 1X Gem Refractometer, 1X flashlight, and 1X refractive oil, providing all essential tools to conduct immediate gemstone analysis without extra purchases.
- Long Lasting Construction: Built with sturdy materials and tested to strict quality and safety standards, offering dependable performance and extended service life under frequent professional use.
- Versatile Gemstone Application: Suitable for evaluating pendants, bracelets, and loose gemstones, helping gemologists and jewelers forestall misidentification and improve authentication speed.
7. Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying
- INCLUDED ASSISTED THERMAL CALIBRATION | Now easily self calibrate your device to your testing environment
- INDUSTRIES MOST TRUSTED | Gemstone tester redesigned to be more compact, sturdy and portable
- THINNEST RETRACTABLE PROBE TIP I PGT II features the industrys thinnest retractable probe tip
- VERSATILE AND RELIABLE | Consistent and reliable results every time. Identifies diamonds/moissanites
- SIMPLE & EASY TO USE | Clear and easy-to-read analog dial; Can differentiate 16 types of gemstones. IMPORTANT TO NOTE | The calibration of this product may be affected during shipping. If you experience issues with calibration, please reach out to the seller for assistance prior to returning the item.
8. Generic Jewelry Refractometer, Portable Gem Tester, Professional Gemstone Tester, Gem Refractometer,
- Refractometer measures refractive indices from 1.30 to 1.81, used to identify many common gemstones, including but not limited to ruby, sapphire, jade, cats eye, amethyst, garnet, and opal
- Refractometer built to provide stable and consistent performance
- Refractometer designed to be portable and easy to carry around
- Refractometer provides simple and straightforward operation
- Gem refractometer is an ideal for tool for gemologists and jewelers
9. KooingTech RHG181 Diamond Tester, 1.30-1.81 Jewelry Refractometer, Portable Gem Tester for All
- Product Parameters: Diamond tester size: approx. 13*6*3.5 cm/5.1*2.4*1.4 inches; Refractive index range: 1.30-1.81 RI; Weight: approx. 721 g; The gem tester is lightweight, compact and easy to carry
- Function: Jewelry refractometer can quickly and accurately measure the refractive index value of jewelry without damage, and can determine other optical characteristics of jewelry, is one of the most important tools to identify jewelry
- Instructions for Use: Wipe the gemstone and refractometer, apply the refraction oil on the surface of the prism, cover the gemstone flat on the surface of the prism, turn on the light source, adjust the focal length of the eyepiece, and start to observe
- Professional Manufacturing: The diamond tester is made of ABS material, which can be used for the gem is uniaxial crystal or biaxial crystal, low power consumption, and provide effective service while ensuring long term use
- Widely Used: The gem tester is suitable for measuring the refractive index of ruby, sapphire, emerald, emerald, tourmaline, crystal, diamond, zircon and other gems and solid materials
10. Presidium Electronic Refractive Index Meter II
- Presidium Refractive Index Meter II (PRIM II), Separates diamonds, moissanites and gemstones via its Refractive Index in seconds! By accurately measuring the quantity of light reflected through the stone, Presidium Refractive Index Meter II (PRIM II) is able to separate diamonds, moissanites and other colored gemstones via its Refractive Index (RI) on flat surfaces of polished gemstones.
- Unlike a traditional refractometer, PRIM II is able to measure the range of RI value from 1.000 to ~3.000, therefore covering the commonly known gemstones in the market, including diamonds and moissanites, In addition, a fast and easy test can be done, without the inconvenience and messy usage of RI liquid.
- The new software enables the user to further eliminate the list of possible colored gemstones by entering known values such as color, hardness and S.G. value, Further information regarding gemstone properties, common found locations can also be easily found.
- Features : PRIM II Software An enhancement to enable users to further eliminate the list of possible colored gemstones by entering known values such as color.
- hardness and S.G. value, Powered up by USB... For more details please check product description.
Peter
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